Topic: 03/103 in. engine mods (Read 18792 times)

mfgreen · « **on:** April 29, 2003, 11:57:44 AM »

Is it possible, for those of you that have had your bikes modified, to post your dyno results with all the specific information as to what mods and variables that affect these results? My dyno results, mods and variables should be posted on 05/05/2003 after I get my results and bike back that evening.
Mike

greglyon · « **Reply #1 on:** April 29, 2003, 04:01:17 PM »

I have done the following mods:
1st stage air filter
techlusion controller
supertraps duals
dyno got up to around 95hp and 96 foot lbs of torque. Overall I am a little dissapointed and am now considering either White Bros 2 into one or the Vance and Hines 2 into 1 propipe. Would appreciate feedback
Thanks
Greg [smiley=6.gif]

mfgreen · « **Reply #2 on:** April 30, 2003, 01:13:57 PM »

Greg-
I have talked to several reputable dyno-techs in the S.E. Wisconsin area and they all seem to be of the same opinion that 2into1 pipes will give you the best bang for your buck. They do recommend that you get a system that can be tuned (removeable-replaceable) discs/baffles. Both systems that you mention are reccommended to be good.
Mike

bigsal57 · « **Reply #3 on:** May 05, 2003, 10:42:20 PM »

I have an '03 and went with the SE high flow air filter and a power commander with rinehart true dual exhaust. Dyno results were 106HP with 111.4 lbs of torque. I had a Power commander tuning center tune it.

It is loud and has enough low end torque to lift the wheel off the ground with a twist.

mfgreen · « **Reply #4 on:** May 06, 2003, 09:07:53 AM »

bigsal57,
Those are impressive results. Please, if possible post the dyno sheet to this forum. Thanks,
Mike

bigsal57 · « **Reply #5 on:** May 06, 2003, 06:43:53 PM »

Ok, But I will need to know how to do that. Send me some directions. I can scan it into paper port and convert it to a jpg but how do I post it here?

joey-davey · « **Reply #6 on:** June 15, 2003, 01:11:50 PM »

Hey bigsal...it sounds like you got some awesome relults. I just bought a new S.E. Road King and was thinking of something similar. Let me know how pleased you are with your mods and if you might do anything different if you had it to do over again. By the way, how loud are the pipes? Thanks

bigsal57 · « **Reply #7 on:** June 15, 2003, 11:01:47 PM »

I am ok with the results but wish the rev limiter wouldnt kick out so low. I think ther is a chip download for it but I want to have a couple of thousand miles first. The pipes are very loud and look great.

Michael · « **Reply #8 on:** June 16, 2003, 11:17:04 AM »

Hello fellow FLHRSEI owners. My name is Michael and I am new here. I have just recently purchased my FLHRSEI2. I have a delema I am in need of some guidance with. I purchased the bike from a friend in town that upgrades his CVO each year. He decided to keep his 2002 (Luxury Red) and I was lucky enough to grab the 2003 (Only 77-miles on it). He put the few missing chrome pieces on the bike that it did not come with, SE Air-Filter, Stage-I Fuel Injection MAP and Kerker Mikuni Pass- A-Truck slip on mufflers. I would have done all the above except for the aftermarket mufflers. I am having an anal-retentive issue with the non-genuine mufflers. The bike is genuine CVO. The mufflers sound good and appear to make good power (I havent Dyno'd it yet) but they aren't genuine. I just sold my 2002 Dyna that I did everything Screamin Eagle. I had the Screamin Eagle Pro 2:1 on that bike and loved it (96hp & 102trq). I removed the inner pressurization tubes and converted it to a straight thru baffle, giving the back just a little back pressure and awesome sound. The 95" motor in the Dyna loved it. Here is the heart of my delema, has anyone put the new Screamin Eagle Pro 2:1 for touring models on a Road King yet? I know the performance and sound will be there, but how does it look. The picture on HD's website looks good, but its a right side profile. How do the left & rear look? Does anyone have any pictures of one?

naitram · « **Reply #9 on:** June 16, 2003, 01:27:29 PM »

welcome to the site, my personal opinion is a bagger should have one pipe down either side, looks unbalanced with a 2-1 pipe, if you need to get that extra 2hp and 2lb-ft then get the pipes you desire. remeber its your ride and other's opinions should not matter to you. even something as unique as an FLHRSEI has room for your own ideas to set it apart from the others. also i too am trying to saty true to the HD/SE parts list but nobody will care if you have V&H pipes or some other brand

mfgreen · « **Reply #10 on:** June 17, 2003, 12:54:26 PM »

Michael,
You will still have the original pipes in a box when and if the day ever comes that you need to choke the power and the sound of your wonderful bike, they'll be there brand new for you.
Good to see you on board and welcome to the site.
Mike

bigsal57 · « **Reply #11 on:** June 17, 2003, 06:11:20 PM »

Here are the dyno results, Sorry it took so long

stroker · « **Reply #12 on:** June 18, 2003, 04:42:37 PM »

With regards to the 103 engine mods discussion going on, what about the dealer RACE TUNB computer program. I've seen where the Screamin' Eagle pipes with HD race tune results in over 105HP to the rear wheel on the Dyno. I saw the print out!

STROKER

mfgreen · « **Reply #13 on:** June 18, 2003, 04:59:55 PM »

Quote

With regards to the 103 engine mods discussion going on, what about the dealer RACE TUNB computer program.

bigsal57 · « **Reply #14 on:** June 18, 2003, 05:34:06 PM »

I cannot see why any dealer would say that HD parts would void any warantee. My dealer said if I wanted to install the race tuner he would like at least 1500 miles on it first. The screeming eagle pipes are to quiet for my need to make some noise

Landfillman · « **Reply #15 on:** June 18, 2003, 08:01:06 PM »

I'm picking my bike up on Friday from the dealer. I had my 1000 mile service done. I also had them put in SYN-3 and dyno it to take the back fire out. I will let you know the results over the weekend.

naitram · « **Reply #16 on:** June 19, 2003, 07:03:23 AM »

Landfillman,

which dealer are you using?

stroker · « **Reply #17 on:** June 19, 2003, 09:03:24 AM »

I agree with Big Sal,any dealer should be willing to stand by their product and service. Waiting until the break-in period is completed before doing mods is only prudent. I thought that maximizing performance was where the discussion was going, if that's the case, then concerns about any warranty issues are moot. Some dealers are more open to what they will honor regarding mods than others. Big Sal....go with the pipes that are music to your ears, but keep in mind that great sound often means less performance.

Stroker

bigsal57 · « **Reply #18 on:** June 19, 2003, 09:21:20 AM »

On the performance note, The Rinehart true duals are probably the best pipe on the market for performance and sound. And they look great with the laser etched black polished end caps.

Landfillman · « **Reply #19 on:** June 21, 2003, 03:25:30 PM »

Even though I live in Central Mass I find Tibby's in Springfield to be the not only the nicest but most knownable about HD. Also they have a dyno and they know how to run it. Buy the way my bike makes 95 T with 92 HP.

naitram · « **Reply #20 on:** June 21, 2003, 04:36:15 PM »

i bought mine at tibbys, they have been good to deal with, but they may have put the wrong chip in my bike, i'm going out there wednesday to get some work done and find out for sure

Landfillman · « **Reply #21 on:** June 21, 2003, 10:50:30 PM »

Do you know of a web site for rinehart pipes?

Michael · « **Reply #22 on:** June 22, 2003, 09:38:03 AM »

Rinerhart pipes are made by Bub, Inc.

www.bubent.com

Unfortunately, their website isnt all that. You would be better served searching the sites like Cycle Exhaust or Direct Parts. The Drag Specialties website has a real nice write-up and picture of the true duals.

Personally, I think my mind is made up. I am going to order the Screamin Eagle Pro 2:1 this week.

joey-davey · « **Reply #23 on:** June 22, 2003, 11:02:26 AM »

Hey Mike, I'm starting to lean the same way with the SE Pro 2:1. As I understand it, nothing will give you more HP gain or torque than a 2-1 system. The key is to balance the right amount of back pressure. The Reinhart true duals are loud but loud doesn't equate to power. True duals are good for top end but don't compare to the low to middle torque that 2-1's produce. Let me know when you do the install and how you feel about it then. Good Luck!

bigsal57 · « **Reply #24 on:** June 22, 2003, 06:33:08 PM »

Did any of you guys buying the 2:1 pipe see my Dyno results with the 2:2? I alreadt had and took off the crappy V&H 2:1 pipe but please post your dyno results after the install so I can check out the results. Also harley chips will not do what a Power Commander will. I can wheelie my bike by just twisting the throttle, No clutch work involved. [smiley=xyxthumbs.gif]

Michael · « **Reply #25 on:** June 22, 2003, 08:09:13 PM »

I hear ya on the V&H 2:1 pipe. I had the SE PRO on my last bike (96hp / 102tq) only 95ci. The pipe comes from the factory (Vance & Hines Mfg) with a baffle similar to the SS2R pipe. This baffle uses Opposing Entry & Exit inner tubes which pressurize the canister for back pressure. If you compare the SS2R baffle to the Quitech-1, Quietech-2, & Competition Baffles the difference is 1-2 or no inner pressurization tubes. I removed the pressurization tubes on my bike to reduce the amount of back pressure. By doing so, in theory the 2:1 now had what V&H calls the Competition Baffle. The end result is a free flowing open center cavity baffle with back pressure created at the Y only. This setup worked extremely well and I am going to give it a try on the 103". As for the Power Commander vs. the HD Race Tuner. I agree the Power Commander does indeed bring MAP manilupations to the table that HD does not. My buddy has a VROD and we just ordered his Power commander. Once I have had a chance to really get into using it, I will make my decision on the HD Race tuner or another Power Commander.

H-D_Tech · « **Reply #26 on:** June 28, 2003, 03:54:04 AM »

Quote

I am ok with the results but wish the rev limiter wouldnt kick out so low. I think ther is a chip download for it but I want to have a couple of thousand miles first. The pipes are very loud and look great.

If you had used a Race Tuner, you could have raised the rev limit. Having a Powercomander, you should have installed the H-D reflash for the bike allowing you to add S/E air cleaner and pipes. It also raises the rev limit to 6200 rpm. You then could have the fuel map written.

H-D_Tech · « **Reply #27 on:** June 28, 2003, 04:09:33 AM »

Quote

I cannot see why any dealer would say that HD parts would void any warantee. My dealer said if I wanted to install the race tuner he would like at least 1500 miles on it first. The screeming eagle pipes are to quiet for my need to make some noise

Sal, you need to read the very first page of the Screamin' Eagle section in the catalog. Many parts void your warranty my man.

H-D_Tech · « **Reply #28 on:** June 28, 2003, 04:12:12 AM »

Quote

On the performance note, The Rinehart true duals are probably the best pipe on the market for performance and sound. And they look great with the laser etched black polished end caps.

This is interesting. I have not seen rave reviews about these pipes. Where did you get this info? Personally, I would shy away from them. They are very pricey, and I have not seen any tests that rate them high.

H-D_Tech · « **Reply #29 on:** July 04, 2003, 01:39:44 PM »

Has anyone tried sending their throttle body to B.C. Gerolomy and using additional fuel control? I'm curious to see if so, and if there are any results.
I put together a 95" EFI softail with my friend and he blew 113.8 hp and 106.6 tq. I'm curious to see if more air can wake some of these up. Of course, exhaust would need to be addressed. [smiley=huepfenlol2.gif]

watsot · « **Reply #30 on:** July 04, 2003, 10:48:09 PM »

I also have the flhrsei2 se pipes ,filter, and race tuner. Bike dynoed at 95 hp and 100 ftlbs torque.I am still in search of more power.Frederick harley in Maryland tuned it for me.I was talking to guy today who claimed to be a dealer wrench in va.He said at his shop they put a 257 cam in a flhrsei2 with pipes intake and tuner and got 110 hp 116 ftlbs torque.Does anyone now the lift and specs on the stock cams on our bikes ? Also has anyone indexed there plugs with any benifit ? Port and polish throttle body? are there any bigger injectors ? Does any one have detailed specs of whats in our 103s ?I have a parts numbers book but nothing to copare with and alot of parts are new for the 103.Imo harley has probably done alot of research and development before they put these motors in production and they will be around for a few years to come. With more motors and forums like these hopefuly we can unlock the real potentual of the 103.

H-D_Tech · « **Reply #31 on:** July 05, 2003, 01:19:01 AM »

Quote

I also have the flhrsei2 se pipes ,filter, and race tuner. Bike dynoed at 95 hp and 100 ftlbs torque.I am still in search of more power.Frederick harley in Maryland tuned it for me.I was talking to guy today who claimed to be a dealer wrench in va.He said at his shop they put a 257 cam in a flhrsei2 with pipes intake and tuner and got 110 hp 116 ftlbs torque.Does anyone now the lift and specs on the stock cams on our bikes ? Also has anyone indexed there plugs with any benifit ? Port and polish throttle body? are there any bigger injectors ? Does any one have detailed specs of whats in our 103s ?I have a parts numbers book but nothing to copare with and alot of parts are new for the 103.With more motors and forums like these hopefuly we can unlock the real potentual of the 103.

Cam lift is .530" at valves - intake and exhaust.

bigsal57 · « **Reply #32 on:** July 05, 2003, 01:46:09 AM »

I guess that the race tuner is not as good as the power commander because I get 107 HP and 111 Ft lbs of torque using it and a set of rinehart true duals. And the pipes look great also. Check out my dyno resulta on page one.

H-D_Tech · « **Reply #33 on:** July 05, 2003, 01:54:54 AM »

Quote

I guess that the race tuner is not as good as the power commander because I get 107 HP and 111 Ft lbs of torque using it and a set of rinehart true duals. And the pipes look great also. Check out my dyno resulta on page one.

Big Sal...each product is only as good as who used it. Actually, the Race Tuner has more features, and can out tune the Powercommander - that's a fact. Additionally, it does not ride along with the bike. REMEMBER, you cannot 100% compare bikes that were dynoed on different dynoes on different days by different people - getting the hin on the number of variables involved? So, feel good!!! [smiley=bigok.gif]

JCZ · « **Reply #34 on:** December 17, 2003, 08:43:53 PM »

Some time has gone by.....does anybody else with the 103 " motor have any dyno numbers? What mods do you have?

I'd be happy with BigSals numbers on my SEEG.

VegasFireman · « **Reply #35 on:** December 26, 2003, 12:35:03 PM »

Quote

I have done the following mods:
1st stage air filter
techlusion controller
supertraps duals
dyno got up to around 95hp and 96 foot lbs of torque.

mr_magoo · « **Reply #36 on:** December 27, 2003, 08:53:17 AM »

If you us White bros 2 into 1 make sure and get the mountain motor core (baffle) they say it makes all the difference on motors over 95inches. [smiley=xyxthumbs.gif]

Mikey · « **Reply #37 on:** July 01, 2004, 04:19:58 PM »

I have the 03 Road King 103 CI with Vance and Hines slip ons and remapped by the dealer. Everything else stock. I had it on the dyno at a run this weekend and it had 80 hp with 90 ft lbs of torque. I was a little disappointed in that. The dyno guy said an air cleaner would bring it up to 90 hp. Do those numbers sound right? It runs fine.

mfgreen · « **Reply #38 on:** July 01, 2004, 04:47:42 PM »

Those numbers sound correct. what you will need to share is the reflash that the dealer used....post the dyno sheets with the weather data and the height above sea level etc.
THe K&N will significantly improve the numbers.

kng103 · « **Reply #39 on:** July 02, 2004, 11:17:51 AM »

big sal,
you had your bike done at rosa's cycle.
he is probably the best tuner on the east coast.
i don't understand why your dyno graph doesn't show the rpm range.
how did he tune it?

starvin · « **Reply #40 on:** July 02, 2004, 03:18:38 PM »

Hey Mikey, I had mine dyno tuned a couple of weeks ago I have 04 flhtcse screemin eagle pipes, race tuner and air cleaner. With the map I made i had 86.5hp and 95.5ft.lb. after 2

bigsal57 · « **Reply #41 on:** July 05, 2004, 08:01:42 PM »

Here is the RPM graph

roadrunner · « **Reply #42 on:** July 06, 2004, 11:47:01 AM »

I am taking delievery of my 04 SEEG next week and was wondering if I should have the mods done before I take delievery or wait till the motors broke in? All the reading I have seen, it looks like it would be better to bump up the compression to 10:1? Would this be covered under the extended warrentary if done by the dealer? Thanks

VegasFireman · « **Reply #43 on:** July 06, 2004, 12:37:25 PM »

Stay away from the V & H pro pipe. It's a long story but I put one on and that pipe is only good for engines to 95 CI. This was from the head R and D guy at V & H, of course sales will not confirm it. I got the information via Dynojet when I had a power commander put on my bike. (it ran so bad he called V and H and talked to someone he knew who was the Head R and D guy.

I lost over 4 hp from the stock exhaust. I now run sampson drag pipes and the racers tuners kit. (too loud for most people but I love it)

Quote

I have done the following mods:
1st stage air filter
techlusion controller
supertraps duals
dyno got up to around 95hp and 96 foot lbs of torque.

roadrunner · « **Reply #44 on:** July 06, 2004, 09:45:59 PM »

THanks for the info, if I decide to go with aftermarket exhaust (Rheinhart Trueduals) and SE aircleaner, can these be installed before I break-in the engine? Or do I need to do the engine break-in (seating the rings) before installing the above (and stage x download).

Tony - www.1700cc.co.uk · « **Reply #45 on:** August 31, 2004, 09:30:20 AM »

Quote

I have an '03 and went with the SE high flow air filter and a power commander with rinehart true dual exhaust. Dyno results were 106HP with 111.4 lbs of torque. I had a Power commander tuning center tune it.

It is loud and has enough low end torque to lift the wheel off the ground with a twist.

Big Sal,

My first post ever goes to you because your "lift the wheel off the ground" post has inspired me to start buying Pipes, PMIII, & Air cleaner for my yellow (don't laugh at my company colours) 2005 which arrives in February. Your bike sounds great & I liked your dyno print out. I had preferred Thunderheaders till I read your posts.

Regards
Tony

bigsal57 · « **Reply #46 on:** August 31, 2004, 01:33:38 PM »

Just a reminder. HD now has a Race tuner that some people say is better then the Power commander. I Still have the PC installed and it limits the revs. You could get more revs with the race tuner but for me I would probably blow the thing up, So I left it alone. The rineharts really are great performers and also the best looking pipe around.

Tony - www.1700cc.co.uk · « **Reply #47 on:** August 31, 2004, 05:50:38 PM »

Quote

Just a reminder. HD now has a Race tuner that some people say is better then the Power commander. I Still have the PC installed and it limits the revs. You could get more revs with the race tuner but for me I would probably blow the thing up, So I left it alone. The rineharts really are great performers and also the best looking pipe around.

I may be wrong but I am planning;

HD Flash upgrade (to increase rev limit to 6200 RPM)
Power Comander III (so that I get bespoke tuning on a dyno rather than guesswork)
Thunderheader 2:1 or Rinehart True Duals (Big Sal is swaying me)
SE Air Filter Package

The UK importer & distributor for Dyno & their rolling roads is 15 miles away and although they only advertise for business from pocket rockets I figure that they will know more about using a re-mapping programme than some HD dealer who has no rolling road and is selecting a predetermined map from an innadequate (for 103") HD option list.

I bet that Alaska is better equipped to mess with HD motors!

There is no Alaskans on here is there?

bigsal57 · « **Reply #48 on:** August 31, 2004, 06:02:22 PM »

I personally like the dual pipe look better then the 2 into 1. I have 2 bro's with 2 into 1 exhausts and I am not impressed by the performance on the 103 stroker. Rinehart makes pipes for numerous NASCAR teams. There must be a reason for that. Much money is up for grabs so you would think they would run the best pipe. If you go with the 2:1 please post the dyo results.

Big Sal

fxdjerry · « **Reply #49 on:** August 31, 2004, 08:47:54 PM »

Here are some runs on my flhrsei2, se air filter, dealer flash, Rinehart True Duals and the quiet baffles.

Jerry

bigsal57 · « **Reply #50 on:** August 31, 2004, 11:25:20 PM »

Where were the runs done. In a shop or in one of those portable truck mounted Dyno's. I am just curious. I would think the HP and Torque would be better. I heard it said that a 103" motor should put out around 100 HP. I notice that the peak HP on your runs are at about 130MPH and on my chart they are at around 110 MPH. I wonder if there is a vast difference in dyno machinery. I would assume all Power commander tuning centers have a PC dyno, But I am just assuming. I really don't know.

fxdjerry · « **Reply #51 on:** September 01, 2004, 12:48:14 PM »

The runs were done on a portable dyno by DR Dyno. I think the results would be better if I used the larger baffles but I am using the smaller quiet baffles. I dont't have a clue as to what revision the flash is at. There is no PC or DFO on the bike. I switched to the smaller baffles for less sound but they are still loud. I do have a lot less decel events now then before. I bought the bike used with 1200 mi about a month or two ago. I have about 3500 mi on it now.

Jerry

bigsal57 · « **Reply #52 on:** September 02, 2004, 10:01:12 AM »

Ok, I guess that the difference is the power commander, And professional tuning by Rosa provided the increase in TQ and HP. Thanks for posting your results.

fxdjerry · « **Reply #53 on:** September 02, 2004, 04:59:24 PM »

BigSal, I will look at the pc or race tuner down the road. I am on info gathering mode very new to Harley FI and appreciate your posts. Thanks

Jerry

bigsal57 · « **Reply #54 on:** September 03, 2004, 01:38:42 AM »

Good luck and please let us know if and when you make any changes. And if they improved the performance.

mfgreen · « **Reply #55 on:** September 03, 2004, 08:29:03 AM »

Quote

THanks for the info, if I decide to go with aftermarket exhaust (Rheinhart Trueduals) and SE aircleaner, can these be installed before I break-in the engine?

kng103 · « **Reply #56 on:** September 03, 2004, 08:59:28 AM »

if you set your ignition in the 100% throttle position on the power commander to 5.
you will get your revs up to 6500 rpm's.
what you are actually doing is advancing your timing.

Tony - www.1700cc.co.uk · « **Reply #57 on:** September 12, 2004, 02:56:27 PM »

Quote

if you set your ignition in the 100% throttle position on the power commander to 5.
you will get your revs up to 6500 rpm's.
what you are actually doing is advancing your timing.

Does that mean that I don't need a HD flash upgrade in order to up the rev limiter?

mfgreen · « **Reply #58 on:** September 12, 2004, 03:58:06 PM »

Quote

Tony,
The information that I have is, that when utilising the PC, the reflash of the ECM is only accomplished by the re-flash of the upgrade chip.

kng103 · « **Reply #59 on:** September 13, 2004, 10:10:29 AM »

tony,
if you have the power commander, then technically you dont need the reflash.
however, it is a good idea to do the reflash just in case your pc ever craps out.
the you dont have to worry about the bike running too lean.

watsot · « **Reply #60 on:** September 13, 2004, 09:54:34 PM »

Here is my dyno 2003 flhrsei2 with screamin eagle slip ons and a mikuni race baffle on right side,air filter and race tuner. chris

harleyb · « **Reply #61 on:** October 07, 2004, 04:41:31 PM »

Quote

I have done the following mods:
1st stage air filter
techlusion controller
supertraps duals
dyno got up to around 95hp and 96 foot lbs of torque.

JCZ · « **Reply #62 on:** October 07, 2004, 08:45:56 PM »

Quote

[smiley=bigok.gif] [smiley=xyxthumbs.gif] [smiley=bigok.gif] [smiley=bigok.gif] [smiley=xyxthumbs.gif]

Greg, check the "dyno numbers" thread in the Electra Glide forum. Many of us have posted dyno sheets and most of us got around 100 horse and 104 lb. ft. of torque with SE high flow air cleaner, race tuner (or Power Commander) and exhaust (I run the Vance and Hines 2 into 1 Pro Pipe.......I've had very good sucess with Thunderheader on other bikes, too).

bf2002flht · « **Reply #63 on:** November 10, 2004, 02:09:06 AM »

Hello everyone. I just stumbled across this web site. I dont have a factory SE, but I do have a carbed FLHT that I built up to a 103 using all SE factory parts (except exhaust V&H 2-1). I've had a couple of dyno runs, first one was 107hp and110.5ft/lb and most recently 104.7hp and 112.9ft/lb the later run feels real good on the street. Thereis a racing baffle made for the V&H or you can cut the stock one down. Let me know if anyone out here has any other questions. Hope to chat with everyone later

Spook_103 · « **Reply #64 on:** November 10, 2004, 12:21:15 PM »

So what heads are you using? Compression ratio, Cam? Thanks. Spook.

bf2002flht · « **Reply #65 on:** November 10, 2004, 11:42:48 PM »

10.5 compression, heads are SE 16953-99A, and cams are SE 258 (569 lift). I run the heck out of it on premium pump gas and have never had any problems. I also maintain the heck out of it too.

mfgreen · « **Reply #66 on:** November 11, 2004, 09:33:56 AM »

Quote

10.5 compression, heads are SE 16953-99A, and cams are SE 258 (569 lift). I run the heck out of it on premium pump gas and have never had any problems. I also maintain the heck out of it too.

The folks at various shops seem to concur that your version is the stronger way to have a 103. They claim that it lasts more miles (longer) when built this way. The moco does not do it this way because of EPA compliance issues.
Mike

Spook_103 · « **Reply #67 on:** November 11, 2004, 09:51:07 AM »

Thanks for information. I haven't a SE catalog handy, are those the HTCC ported heads or what? Does the SE258 put the power band toward the upper end or is it still acceptable for the type of riding most of us do, between 2500 and 4000 RPM? Thanks in advance. Spook.

bf2002flht · « **Reply #68 on:** November 11, 2004, 01:32:52 PM »

They are NOT the "httc" ported or polished. theese are the SE TC88 performance head straight out of the box at $850.00. I'm 260 pounds and sometimes ride two-up and there isn't a bad spot in it for street use. Granted, at about 3000 rpm there is a VERY, VERY, sweet spot that will straighten your arms out in a hurry, but no bad spots even at take off. Just for kicks I did the "Teresi Dyno Drags" on the back of a semi at reno HD durring street vibrations (not real world drags by any sense) and nailed just about everyone that day even giving up C.I. to alot of other bikes. I ran the following that day:
10.582@116.5, 11.001@119.400, 10.837@122.600, 10.895@121.900, and 10.714@122.600. Not too shabby

Author Topic: 03/103 in. engine mods (Read 18792 times)

mfgreen

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mfgreen

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starvin

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